Saint-Gobain Quartz Saint-Gobain Quartz has over 100 years of experience, manufacturing and supplying a wide range of Fused Quartz and Fused Silica Products to over 50 diverse industries ranging from Semiconductor and Fibre Optic through to Metal Foundries and Chemical Processing. A number of non-quartz products are also available, including Piezoceramics and Micaver Insulators.